diy solar

diy solar

Recent content by cwk

  1. C

    Which Tesla Model S batteries have the plug to hook up a balance cable?

    I found this showing how to wire modules to communicate: Intermodule and Partial BMS. I understand the VCC(+) and Gnd(-), but wonder what to do with the transmit, receive, and fault signals. Will says he uses this Tenergy 5-in-1 on his site here, but the pins on it are for 7 modules plus a...
  2. C

    Which Tesla Model S batteries have the plug to hook up a balance cable?

    My DIY Powerwall is up and running. I've got two modules in series charging from a Midnite 150 with an AIMS 48v inverter doing the work. This is day two and I had a restless night's sleep thinking about imbalanced cells. My modules each came with half an OEM balance cable with the Molex...
  3. C

    12s modules from BMW i3

    That's cool! When my i3 got totaled I thought about buying it back salvage to build my Powerwall. I'll keep watching this thread and hope somebody else is doing this and able to help you. Good luck!
  4. C

    Lead + Lithium?

    Thanks guys. Since my 6V Interstates are going on 2 yrs old, it's probably time to replace anyway. My question now, is the same one gman is asking above. Since my current (no pun intended) battery is 48V and for various reasons I want to maintain that voltage, can I simply run two ebay-special...
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    Lead + Lithium?

    I’ve got a 48v lead acid golf cart battery and need more storage. I’m looking at the 5.2kWh 2V Tesla batteries and would like to run two in series to replace or add to my existing battery. Are there any gotchas I should consider first? Can I integrate these with my existing lead acid setup?
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